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Re: PerlIO: crlf layer on Windows interfering with UCS-2 unicode

by ikegami (Pope)
on May 19, 2008 at 22:56 UTC ( #687488=note: print w/ replies, xml ) Need Help??


in reply to PerlIO: crlf layer on Windows interfering with UCS-2 unicode

Great post. I ++ed it when you originally posted it. I would just like to clarify one statement.

Any encoding with a minimal character size of more than one byte (like UTF-16, UTF-32) should pose similar problems.

That's not a sufficient condition. For example, the layer order should interfere with EBCDIC-based encodings, even if each character maps to a single byte.

The following encodings should be negatively affected by the default layer order:

  • Encodings which map LF to something other than 0A.
  • Encodings which map CR to something other than 0D.
  • Encodings which map any character other than LF and CR to a sequence of bytes that contains 0A or 0D.


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